<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/idempotence/submit">
    <input type="hidden" id="token" name="token" th:value="${session.token}" />
    <input type="submit" value="提交" />
</form>
</body>
</html>